Makita HR2800 Instruction Manual page 8

Changing the quick change chuck
for SDS-plus
For model HR2810T, HR2811FT
The quick change chuck for SDS-plus can be easily
exchanged for the quick change drill chuck.
Removing the quick change chuck
for SDS-plus
► Fig.4: 1. Quick change chuck for SDS-plus
2. Change cover line 3. Change cover
CAUTION:
• Before removing the quick change chuck for
SDS-plus, always remove the bit.
Grasp the change cover of the quick change chuck for
SDS-plus and turn in the direction of the arrow until
the change cover line moves from the
the symbol. Pull forcefully in the direction of the arrow.
Attaching the quick change drill
chuck
► Fig.5: 1. Spindle 2. Quick change drill chuck
3. Change cover line 4. Change cover
Check the line of the quick change drill chuck shows
the symbol. Grasp the change cover of the quick
change drill chuck and set the line to the
Place the quick change drill chuck on the spindle of the tool.
Grasp the change cover of the quick change drill chuck
and turn the change cover line to the
click can clearly be heard.
Selecting the action mode
For Model HR2800
► Fig.6: 1. Action mode changing knob
This tool employs an action mode changing knob. Select one of
the two modes suitable for your work needs by using this knob.
For rotation only, turn the knob so that the arrow on the
knob points toward the
For rotation with hammering, turn the knob so that the arrow
on the knob points toward the
CAUTION:
• Always set the knob fully to your desired mode
symbol. If you operate the tool with the knob
positioned halfway between the mode symbols,
the tool may be damaged.
• Use the knob after the tool comes to a complete
stop.
For models HR2810, HR2810T,
HR2811F, HR2811FT
Rotation with hammering
► Fig.7: 1. Action mode changing knob
For drilling in concrete, masonry, etc., rotate the action mode
changing knob to the symbol. Use a tungsten-carbide tipped bit.
symbol to
symbol.
symbol until a
symbol on the tool body.
symbol on the tool body.
Rotation only
► Fig.8: 1. Action mode changing knob
For drilling in wood, metal or plastic materials, lock
button and rotate the action mode changing knob to
the symbol. Use a twist drill bit or wood bit.
Hammering only
► Fig.9: 1. Action mode changing knob
For chipping, scaling or demolition operations, rotate
the action mode changing knob to the
a bull point, cold chisel, scaling chisel, etc.
CAUTION:
• Do not rotate the action mode changing knob when the
tool is running under load. The tool will be damaged.
• To avoid rapid wear on the mode change mechanism, be
sure that the action mode changing knob is always posi-
tively located in one of the three action mode positions.
Torque limiter
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the out-
put shaft. When this happens, the bit will stop turning.
CAUTION:
• As soon as the torque limiter actuates, switch
off the tool immediately. This will help prevent
premature wear of the tool.
• Bits such as hole saw, which tend to pinch or
catch easily in the hole, are not appropriate for
this tool. This is because they will cause the
torque limiter to actuate too frequently.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Side grip (auxiliary handle)
► Fig.10: 1. Grip base 2. Side grip 3. Teeth 4. Protrusion
CAUTION:
• Always use the side grip to ensure operating
safety.
Install the side grip so that the teeth on the grip fit in
between the protrusions on the tool barrel. Then tighten
the grip by turning clockwise at the desired position. It
may be swung 360° so as to be secured at any position.
Bit grease
Coat the bit shank head beforehand with a small
amount of bit grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon-
ger service life.
8 ENGLISH
symbol. Use